Table 4 The means, standard deviations, and ranges of primary stability characteristics of all test groups
Group 1 (160 kg/m3 density) | Group 2 (240 kg/m3 density) | Group 3 (320 kg/m3 density) | RCI screw 7–8 (320 kg/m3 density) | |
|---|---|---|---|---|
Stiffness(N/mm) | 76.7 ± 8.72a (range: 61.6–92.4) | 86.6 ± 8.56 (range: 67.4–102.7) | 93.9 ± 26.13c (range: 51.8–123.8) | 158.9 ± 57.38 (range: 113.5–285.4) |
Yield Strength(N) | 139.7 ± 11.69a (range: 120–162) | 171.4 ± 28.92 (range: 140–231) | 188.7 ± 82.37c (range: 108–350) | 416.02 ± 118.84 (range: 275–616) |
Ultimate Strength(N) | 172.2 ± 14.22ab (range: 144–193) | 310 ± 77.58 (range: 205–394) | 363 ± 145.83c (range: 205–702) | 693.18 ± 143.95 (range: 532–942) |